電子ビーム溶接の溶込み深さに関する研究 IV  溶融部からの電子量と溶込み深さの関係

DOI

書誌事項

タイトル別名
  • Penetration Depth in Electron Beam Welding (Report 4)
  • 溶融部からの電子量と溶込み深さの関係

抄録

It can be supposed that there are many particles emitted from molten metal during electron beam welding and that amount of these particles depends largely upon the state of molten metal. In order to detect the penetration depth or state of fusion zone, we tried to capture those particles, especially electrons using copper electrodes, named probes, disposed near molten metal and negatively biased with respect to specimen. Comparison between probe current and penetration depth or state of spouting vapor was carried out. Results obtained are summerized as follows;<BR>1) Energy of most electrons captured by probe is very small, less than 1 eV.<BR>2) Probe current consists of a DC component and AC components of various frequencies.<BR>3) The DC component relates closely to macroscopic penetration depth.<BR>4) Probe current also relates closely to vapor spouting from molten metal, so that probe current represents macroscopic state of fusion zone.<BR>5) An AC component of frequency range between 50 and 100 Hz. corresponds to ripple line or solidification line of fusion zone of metal and displays movement of molten metal.

収録刊行物

  • 溶接学会誌

    溶接学会誌 46 (10), 721-727, 1977

    一般社団法人 溶接学会

詳細情報

  • CRID
    1390282681475859072
  • NII論文ID
    130003763394
  • DOI
    10.2207/qjjws1943.46.10_721
  • ISSN
    18837204
    00214787
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
    • Crossref
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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